// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include "opencv2/core.hpp"
#include "opencv2/imgcodecs.hpp"
#include "opencv2/imgproc.hpp"
#include <chrono>
#include <iomanip>
#include <iostream>
#include <ostream>
#include <vector>

#include <cstring>
#include <fstream>
#include <numeric>

using namespace std;
using namespace paddle;

namespace PaddleVideo
{

    class Normalize
    {
    public:
        virtual void Run(cv::Mat *im, const std::vector<float> &mean,
                         const std::vector<float> &scale, const bool is_scale = true);
    };

    // RGB -> CHW
    class Permute
    {
    public:
        virtual void Run(const cv::Mat *img, float *data);
    };

    class Scale
    {
    public:
        virtual void Run(const cv::Mat &img, cv::Mat &resize_img,
                         bool use_tensorrt = false,
                         const int &short_size = 256);
    };

    class CenterCrop
    {
    public:
        virtual void Run(const cv::Mat &img, cv::Mat &crop_img,
                         bool use_tensorrt = false,
                         const int &target_size = 224);
    };

    class TenCrop
    {
    public:
        virtual void Run(const cv::Mat &img, std::vector<cv::Mat> &crop_frames,
                         const int &begin_index,
                         bool use_tensorrt = false,
                         const int &target_size = 224);
    };
} // namespace PaddleVideo
